Flyrock: The “Hits” Just Keep On Coming!

Despite all claims to the contrary, flyrock debris is an inherent and unavoidable byproduct of blasting operations. Wherever blasting occurs, flyrock debris is sure to follow. It is influenced by numerous and unpredictable factors, including blast design limitations, uneven energy distribution, varying atmospheric conditions, human or operational errors, and the inherently dynamic nature of blasting, Additionally, geological inconsistencies, such as variations in rock density, fractures and fault lines, further amplify the unpredictability of flyrock incidents. Flyrock debris poses significant risks to safety, infrastructure, and nearby properties. While blasting has other adverse effects, flyrock is considered the most dangerous due to its potential to injure, permanently disable, or kill on contact. It is responsible for the majority of onsite and offsite injuries and fatalities in blasting operations, many of which could be prevented by enacting mandatory minimum onsite setbacks and mandatory minimum offsite separation distances from sensitive land uses and activities. In Ontario, flyrock remains undefined under the Aggregate Resources Act (ARA), effectively allowing the aggregate industry to avoid regulatory oversight. If flyrock incidents do not result in debris leaving the site or causing injury or death, they remain concealed from the public and unreported to regulating authorities. This lack of mandatory disclosure exacerbates the issue, leaving communities vulnerable to unaddressed hazards. The implementation of mandatory minimum setbacks and separation distances is essential to safeguarding the safety of workers and surrounding communities.